/*	$OpenBSD: macectrl.S,v 1.4 2004/09/10 08:58:27 pefo Exp $ */

/*
 * Copyright (c) 2004 Opsycon AB  (www.opsycon.se / www.opsycon.com)
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */
#include <machine/param.h>
#include <machine/psl.h>
#include <machine/asm.h>
#include <machine/cpu.h>
#include <machine/regnum.h>

#include "assym.h"

	.set	mips3
	.set	noreorder		# Noreorder is default style!

/*
 *  Update the HW interrupt mask anding the argument with the
 *  interrupt mask for enabled interrupts. Only enabled interrupt
 *  sources can be unmasked.
 */
	.globl	hw_setintrmask
LEAF(hw_setintrmask, 0)
	PTR_L	v1, hwmask_addr
	lw	v0, mace_intem
	not	a0, a0
	beqz	v1, 1f			# addr not set, skip.
	and	v0, a0
	jr	ra
	sd	v0, 0(v1)
1:
	jr	ra
	nop
END(hw_setintrmask)

	.data
	.globl	hwmask_addr
hwmask_addr: PTR_VAL 0
